Long-Term Debt, Type [Axis] Long-Term Debt [Member] Capital Lease Obligations [Member] Equity Components [Axis] Preferred Stock [Member] Common Stock [Member] Additional Paid-in Capital [Member] Retained Earnings [Member] Treasury Stock [Member] AOCI Attributable to Parent [Member] Long-Lived Tangible Asset [Axis] Eneti Vessels [Member] Total Eneti Vessels [Member] E.R. Vessels [Member] Total ER Vessels [Member] Statistical Measurement [Axis] Minimum [Member] Maximum [Member] Combined carrying capacity [Member] Property Subject to or Available for Operating Lease [Axis] Charter In Vessels [Member] Real Estate, Type of Property [Axis] Office Building [Member] Office Rent Payments [Member] Related Party [Axis] Oceanbulk Maritime and its affiliates [Member] Interchart [Member] AOM [Member] Starocean [Member] Augustea Technoservices Ltd. and affiliates [Member] Product Shipping and Trading S.A. [Member] Combine Marine Ltd. [Member] Management and Directors Fees [Member] Hartree Marine Fuels LLC [Member] Iblea Ship Management Limited [Member] Hartree Marine Fuels LLC [Member] Combine Marine Ltd. and Alma Properties [Member] AOM [Member] Cost [Member] Accumulated depreciation [Member] Net Book Value [Member] Collateral Held [Axis] First-priority mortgage [Member] Lease Agreements [Member] Second-priority mortgage [Member] Eneti Acquisition Vessels [Member] Laura, Idee Fixe, Roberta, Kaley, Diva, Star Sirius and Star Vega [Member] Counterparty Name [Axis] CMBL [Member] Lender Name [Axis] All Lease Financings [Member] Financing Lease [Member] ING $310,600 Facility [Member] Scenario [Axis] Nine Tranches [Member] HSBC $80,000 Facility [Member] Star Omicron [Member] Madredeus [Member] Cash and Cash Equivalents [Axis] Minimum liquidity, not legally restricted [Member] Minimum liquidity, legally restricted [Member] All bank loans and applicable lease financings except the DSF $55,000 Facility [Member] Debt [Member] Plan Name [Axis] At-the-market equity offering programs [Member] Equity Incentive Plan [Member] Share Repurchase Program [Axis] Share Repurchase Program [Member] Sale of Stock [Axis] Open Market Transactions [Member] Fourth quarter of 2021 [Member] First quarter of 2022 [Member] 2022 Plan [Member] Vesting [Axis] Vest In October 2022 [Member] Vest In April 2023 [Member] Vest In April 2025 [Member] Other Commitments [Axis] Future, minimum, non-cancellable charter revenue (1) [Member] Finite-Lived Intangible Assets by Major Class [Axis] Vessel BWTS and ESD (1) [Member] Liability Class [Axis] Commitments [Member] Forecast [Member] Financial Instrument [Axis] Derivative [Member] Fair Value Hierarchy and NAV [Axis] Fair Value, Inputs, Level 2 [Member] DSF $55,000 Facility [Member] Derivative Instrument [Axis] Forward Freight Agreements [Member] Bunker Swaps [Member] Hedging Designation [Axis] Not Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Time charters [Member] Voyage charters [Member] Pool adjustment [Member] Revenue Contracts [Member] Vessels Operating in CCL Pool [Member] Vessels Operating In Short Pool [Member] Subsequent Event Type [Axis] Subsequent Event [Member] Citi $100,000 Facility [Member] Tranche A [Member] Tranche B [Member] SEB $42,000 Facility [Member] Mercurial Virgo [Member] Amami [Member] Tranche A and B [Member] Mercurial Virgo And Amami [Member] Tranche C [Member] Star Calypso [Member] ABN $67,897 Facility [Member] Cover [Abstract] Document Type Amendment Flag Amendment Description Document Registration Statement Document Annual Report Document Quarterly Report Document Transition Report Document Shell Company Report Document Shell Company Event Date Document Period Start Date Document Period End Date Document Fiscal Period Focus Document Fiscal Year Focus Current Fiscal Year End Date Entity File Number Entity Registrant Name Entity Central Index Key Entity Primary SIC Number Entity Tax Identification Number Entity Incorporation, State or Country Code Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Three Entity Address, City or Town Entity Address, State or Province Entity Address, Country Entity Address, Postal Zip Code Country Region City Area Code Local Phone Number Extension Written Communications Soliciting Material Pre-commencement Tender Offer Pre-commencement Issuer Tender Offer Title of 12(b) Security No Trading Symbol Flag Trading Symbol Security Exchange Name Title of 12(g) Security Security Reporting Obligation Annual Information Form Audited Annual Financial Statements Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Elected Not To Use the Extended Transition Period Document Accounting Standard Other Reporting Standard Item Number Entity Shell Company Entity Public Float Entity Bankruptcy Proceedings, Reporting Current Entity Common Stock, Shares Outstanding Documents Incorporated by Reference [Text Block] Statement of Financial Position [Abstract] ASSETS CURRENT ASSETS Cash and cash equivalents Restricted cash, current (Notes 7 and 12) Treasury bills Trade accounts receivable, net Inventories (Note 4) Due from managers Due from related parties (Note 3) Prepaid expenses and other receivables Derivatives, current asset portion (Note 12) Other current assets (Note 13) Total Current Assets FIXED ASSETS Vessels and other fixed assets, net (Note 5) Total Fixed Assets OTHER NON-CURRENT ASSETS Long term investment (Note 3) Restricted cash, non-current (Notes 7 and 12) Operating leases, right-of-use assets (Note 2) Derivatives, non-current asset portion (Note 12) TOTAL ASSETS LIABILITIES & SHAREHOLDERS' EQUITY CURRENT LIABILITIES Current portion of long-term bank loans (Note 7) Lease financing short term (Note 6) Accounts payable Due to managers Due to related parties (Note 3) Accrued liabilities Derivatives, current liability portion (Note 12) Deferred revenue Total Current Liabilities NON-CURRENT LIABILITIES Long-term bank loans, net of current portion and unamortized loan issuance costs of $10,853 and $9,591, as of December 31, 2021 and June 30, 2022, respectively (Note 7) Lease financing long term, net of unamortized lease issuance costs of $5,318 and $3,558, as of December 31, 2021 and June 30, 2022, respectively (Note 6) Operating lease liabilities (Note 2) Other non-current liabilities TOTAL LIABILITIES COMMITMENTS & CONTINGENCIES (Note 11) SHAREHOLDERS' EQUITY Preferred Shares; $0.01 par value, authorized 25,000,000 shares; none issued or outstanding at December 31, 2021 and June 30, 2022, respectively (Note 8) Common Shares, $0.01 par value, 300,000,000 shares authorized; 102,294,758 shares issued and outstanding as of December 31, 2021; 102,688,378 shares issued and outstanding as of June 30, 2022 (Note 8) Additional paid in capital Accumulated other comprehensive income/(loss) Accumulated deficit Total Shareholders' Equity TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY Schedule of Long-Term Debt Instruments [Table] Statement [Line Items] Debt Issuance Costs, Net Preferred Stock, Par or Stated Value Per Share Preferred Stock, Shares Authorized Preferred Stock, Shares Issued Preferred Stock, Shares Outstanding Common Stock, Par or Stated Value Per Share Common Stock, Shares Authorized Common Stock, Shares, Issued Common Stock, Shares, Outstanding Income Statement [Abstract] Revenues: Voyage revenues (Note 13) Expenses/(Income) Voyage expenses (Note 3) Charter-in hire expenses (Note 3) Vessel operating expenses Dry docking expenses Depreciation (Note 5) Management fees (Note 3) General and administrative expenses (Note 3) (Gain)/Loss on time charter agreement termination Other operational loss Other operational gain (Gain)/Loss on forward freight agreements and bunker swaps, net (Note 12) Total operating expenses, net Operating income / (loss) Other Income/ (Expenses): Interest and finance costs (Note 7) Interest and other income/(loss) Gain/ (Loss) on debt extinguishment, net (Note 7) Total other expenses, net Income / (loss) before taxes and equity in income of investee Income taxes Income/(Loss) before equity in income of investee Equity in income / (loss) of investee Net income/(loss) Earnings / (Loss) per share, basic  Earnings / (Loss) per share, diluted Weighted average number of shares outstanding, basic (Note 9) Weighted average number of shares outstanding, diluted  (Note 9)  Net income / (loss)  Other comprehensive income / (loss):  Unrealized gain / (loss) from hedging interest rate swaps recognized in Other comprehensive income/(loss) before reclassifications  Less:  Reclassification adjustments of interest rate swap gain/(loss)  Other comprehensive income / (loss)  Total comprehensive income / (loss)  Statement [Table] Beginning balance, value Beginning balance, shares Net income / (loss) Other comprehensive income / (loss) Amortization of share-based compensation (Note 10) Dividend declared  ($0.30 per share) Acquisition of vessels Acquisition of vessels, shares Cancellation of repurchased common shares, shares Cancellation of repurchased common shares Issuance of vested and non-vested shares and amortization of share-based compensation (Note 10) Issuance of vested and non-vested shares and amortization of share-based compensation (Note 10), shares Dividends declared ($3.65 per share) (Note 8)  Equity offerings, net (Note 8)  Equity offerings, net (Note 8), shares Repurchase of common shares, (Note 8), shares Repurchase of common shares, (Note 8) Ending balance, value Ending balance, shares Statement of Stockholders' Equity [Abstract] Common Stock, Dividends, Per Share, Declared Statement of Cash Flows [Abstract] Cash Flows from Operating Activities: Adjustments to reconcile net income/(loss) to net cash provided by/(used in) operating activities: Amortisation of fair value of below market time charters Amortization of debt (loan, lease & notes) issuance costs (Note 7) Gain/(Loss) on debt extinguishment, net (Note 7) Share-based compensation (Note 10) Change in fair value of forward freight derivatives and bunker swaps (Note 12) Other non-cash charges Gain on hull and machinery claims Equity in income / (loss) of investee (Increase)/Decrease in: Trade accounts receivable Inventories Prepaid expenses and other receivables  Derivatives asset Due from related parties Due from managers Increase/(Decrease) in: Accounts payable Due to related parties Accrued liabilities Due to managers Deferred revenue Net cash provided by / (used in) Operating Activities Cash Flows from Investing Activities: Advances for vessels & vessel upgrades and other fixed assets Treasury bills Hull and machinery insurance proceeds Net cash provided by / (used in) Investing Activities Cash Flows from Financing Activities: Proceeds from bank loans, leases and notes Loan and lease prepayments and repayments Financing and debt extinguishment fees paid Refund of financing premia Dividends paid (Note 8) Proceeds from issuance of common stock Offering expenses paid related to the issuance of common stock Repurchase of common shares  Net cash provided by / (used in) Financing Activities Net increase/(decrease) in cash and cash equivalents and restricted cash  Cash and cash equivalents and restricted cash at beginning of period Cash and cash equivalents and restricted cash at end of period  Cash paid during the period for: Interest Non-cash investing and financing activities: Shares issued in connection with vessel acquisitions Vessel upgrades Assumed debt upon acquisition Reconciliation of (a) cash and cash equivalents, and restricted cash reported within the consolidated balance sheets to (b) the total amount of such items reported in the statements of cash flows: Restricted cash, current (Note 7) Restricted cash, non-current (Note 7) Cash and cash equivalents and restricted cash at end of period shown in the statement of cash flows Organization, Consolidation and Presentation of Financial Statements [Abstract] Basis of Presentation and General Information Accounting Policies [Abstract] Significant Accounting Policies and Recent Accounting Pronouncements Related Party Transactions [Abstract] Transactions with Related Parties Inventory Disclosure [Abstract] Inventories Property, Plant and Equipment [Abstract] Vessels and other fixed assets, net Lease Financing Lease financing Debt Disclosure [Abstract] Long-term bank loans Equity [Abstract] Preferred and Common Shares and Additional Paid-in Capital Earnings Per Share [Abstract] Earnings per Share Share-Based Payment Arrangement [Abstract] Equity Incentive Plans Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Fair Value Disclosures [Abstract] Fair value measurements and Hedging Revenue from Contract with Customer [Abstract] Voyage revenues Subsequent Events [Abstract] Subsequent Events Significant Accounting Policies and Recent Accounting Pronouncements - Operating Lease, Time Charter - in Payments (Table) Significant Accounting Policies and Recent Accounting Pronouncements - Operating Lease, Payments for Office Rental (Table) Transactions with Related Parties - Balance Sheets (Table) Transactions with Related Parties - Income Statements (Table) Inventories (Table) Vessels and other fixed assets, net - Schedule of vessels and other fixed assets (Table) Lease financing - Capital lease obligations, Principal payments (Table) Long-term bank loans - Principal payments (Table) Long-term bank loans - Interest and finance costs (Table) Earnings per Share - Earnings/ (Loss) per Share (Table) Equity Incentive Plans - Summary of non-vested restricted share options (Table) Commitments and Contingencies - Charter party agreements (Table) Commitments and Contingencies - Other commitments (Table) Fair value measurements and Hedging - Derivative instruments effect on statement of operations (Table) Fair Value Measurements and Hedging - Fair value on a recurring basis - Significant Other Observable Inputs (Table) Voyage revenues (Table) Date of incorporation Number of vessels owned Vessel capacity Average age of vessels June 30, 2023 June 30, 2024 June 30, 2025 June 30, 2026 June 30, 2027 June 30, 2028 and thereafter Total undiscounted lease payments Discount based on incremental borrowing rate Present value of lease liability SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, by Property [Table] Operating Lease, Weighted Average Remaining Lease Term Operating Lease, Expense Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Line Items] Due from related parties Due from related parties Due to related parties Due to related parties Voyage expenses Consultancy fees Directors compensation Office rent General and administrative expenses Management fees Charter - in hire expenses Lubricants Bunkers Total Property, Plant and Equipment [Table] Property, Plant and Equipment [Line Items] Balance, period start Balance, period start Balance, period start - Acquisition of other fixed assets, vessel improvements - Depreciation for the period Balance, period end Balance, period end Balance, period end Debt Instrument, Collateral Amount Property, Plant and Equipment, Net Debt Instrument [Line Items] June 30, 2023 June 30, 2024 June 30, 2025 June 30, 2026 June 30, 2027 June 30, 2028 and thereafter Total bareboat lease minimum payments Unamortized lease issuance costs Total bareboat lease minimum payments, net Lease financing short term Lease financing long term, net of unamortized lease issuance costs Amount repaid under lease agreements Interest rate description Total Long-term bank loans Unamortized loan issuance costs Total Long-term bank loans, net Current portion of long term bank loans Long term bank loans, net of current portion and unamortized loan issuance costs Interest on financing agreements Reclassification adjustments of interest rate swap loss/(gain) transferred to Interest and finance costs from Other Comprehensive Income (Note 12) Amortization of debt (loan, lease & notes) issuance costs Other bank and finance charges  Interest and finance costs Line of Credit Facility, Initiation Date Proceeds from Lines of Credit Number of Loan Tranches Line of Credit Facility, Maximum Borrowing Capacity Draw down date Description of scope, credit facility Repayment installment Line of Credit Facility, Frequency of Payments Line of Credit Facility, Periodic Payment Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid Prepayment date Prepayments of debt Cash and Cash Equivalents, at Carrying Value Restricted cash, current and non-current Debt Instrument, Covenant Compliance Debt Instrument, Interest Rate Terms Derivative, Notional Amount Long-Term Debt, Weighted Average Interest Rate, at Point in Time Commitment fees Finance expenses Write off of Deferred Debt Issuance Cost Gain on hedging instrument Class of Treasury Stock [Table] Equity, Class of Treasury Stock [Line Items] Number of shares sold Treasury Stock, Shares, Acquired Treasury Stock Acquired, Average Cost Per Share Treasury Stock, Retired, Cost Method, Amount Commissions and share cancellation fees Payments of Dividends Common Stock, Dividends, Per Share, Cash Paid Weighted average common shares outstanding, basic Basic earnings / (loss) per share Dillutive effect of non vested shares Weighted average common shares outstanding, diluted Diluted earnings / (loss) per share Unvested at beginning of period Unvested at beginning of period Granted Granted Vested Vested Unvested at end of period Unvested at end of period Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Shares reserved for issuance Number of shares granted Number of shares vested during the period Restricted common shares expected to vest Fair value on grant date Stock based compensation cost Share-Based Payment Arrangement, Expense Award percentage Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Dividend, Share-Based Payment Arrangement, Cash Other Commitments [Table] Other Commitments [Line Items] Total 2023 Total 2023 Total 2023 2024 Total 2023 2024 Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Interest and finance costs Reclassification adjustments of interest rate swap loss/(gain) transferred to Interest and finance costs from Other comprehensive income/(loss) (Note 7) Total Gain/(loss) recognized  Gain/(loss) on forward freight agreements and bunker swaps, net Realized gain/(loss) on forward freight agreements and freight options Realized gain/(loss) on bunker swaps Unrealized gain/(loss) on forward freight agreements and freight options Unrealized gain/(loss) on bunker swaps Total Gain/(loss) recognized Fair Value, Recurring and Nonrecurring [Table] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Derivative Asset, Current Derivative Asset, Noncurrent Total Derivative Assets LIABILITIES Derivative Liability, Current Total Derivative Liabilities Derivative Liability, Noncurrent Schedule of Fair Value, off-Balance-Sheet Risks [Table] Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items] Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion Restricted cash, current Debt Instrument, Fair Value Disclosure Difference between book and fair value Loan's book value Revenues from External Customers and Long-Lived Assets [Line Items] Voyage revenues Increase in trade accounts receivable, gross Increase (Decrease) in Deferred Revenue Decrease in deferred assets related to revenue contracts Other Assets, Current Deferred Revenue, Current Subsequent Event [Table] Subsequent Event [Line Items] Debt Instrument, Maturity Date, Description Long-Term Debt, Description Line of Credit Facility, Collateral This element represents vessels and other fixed assets, net of accumulated depreciation. Revenues arising from services provided to charterers according to the terms and conditions included in charter agreements. Voyage revenues may include the amortization of above/below market acquired time charter. Costs relating to the voyages performed by the vessels and may include port, canal, bunker expenses, commissions and other. Amount after tax of income (loss) from continuing operations before addition of income (loss) from equity method investments. Noncash effects of derivative financial instruments. This element represents the gain arising from insurance claims. The amount of noncash investment for vessel upgrades. The total value of vested and non-vested shares issued during the period and the total amount of stock based compensation amortized. The fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. Volume measured in metric tons. The fixed bunker spread price under a bunker swap agreement. The aggregate net effect in earnings due to derivatives. The realized gain / (loss) of forward freight agreements, held at each balance sheet date, that was included in earnings for the period. The realized gain / (loss) of bunker swaps agreements, held at each balance sheet date, that was included in earnings for the period. The net change in the difference between the fair value, of forward freight agreements, held at each balance sheet date, that was included in earnings for the period. The net change in the difference between the fair value, of bunker swaps, held at each balance sheet date, that was included in earnings for the period. Fair value as of the balance sheet date of bunker swaps derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities. Nominal or face amount used to calculate payment on derivative. The number of tranches under the credit facility. Number of repayment installments of a credit facility agreement. Amount of borrowing capacity currently available under the transaction involving the sale of property to another party and the lease of the property back to the seller. Number of vessels owned by the Company. The vessel's capacity in deadweight tonnage. The fees related to receiving management consultancy services during the reporting period. Expenditures for compensation for non executive officers.Examples include, but not limited to, Board of Director's attendance fees. Carrying amount as of the balance sheet date of lubricants' inventory. Carrying amount as of the balance sheet date of bunker's inventory. Amount of decrease in accumulated depreciation, depletion and amortization as a result of impairment of property, plant and equipment. Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. Amount of fee for early prepayment of finance lease. The entire disclosure for the asset or liability arising from the market value of the time charter assumed from a vessel acquisition or redelivery upon a time charter agreement termination. Tabular disclosure of interest and finance costs. Amount of interest expense on debt and finance lease liabilities. Other bank and financial services costs incurred during the reporting period. Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item. The total financing that the company has secured under loan and lease agreements, in order to pay future commitments. The proceeds from the financing premia refund. Specific incremental costs directly attributable to a proposed or actual secondary offering of securities. The entire disclosure for advances paid to yards and capitalized expenses for acquisition of vessels. The entire disclosure for management fees. OtherOperationalGainTextBlock The entire disclosure for Voyage expenses (Port charges, bunkers, commissions charged by third parties, commissions charged by related parties) and Vessel Operating expenses (crew wages and related costs, insurances, repairs, spares and maintenance, consumable stores, tonnage taxes, miscellaneous). Disclosure of accounting policy for advances for vessels under construction. Disclosure of accounting policy for vessels held for sale. Disclosure of accounting policy for dry docking costs. Disclosure of accounting policy regarding recognition of revenue and related expenses. Disclosure of accounting policy for offering costs that are expensed during the period or presented against paid-in capital. Tabular disclosure of the entity's subsidiaries. Tabular disclosure for advances paid to yard and capitalized expenses for the acquisition of vessels. Tabular disclosure for Voyage expenses (Port charges, bunkers, commissions charged by third parties, commissions charged by related parties). Tabular disclosure for Vessel Operating expenses (crew wages and related costs, insurances, repairs, spares and maintenance, consumable stores, tonnage taxes, miscellaneous). Carrying value as of the balance sheet date of obligations incurred through that date and payable for accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Carrying value as of the balance sheet date of obligations incurred through that date and payable for legal services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Carrying value as of the balance sheet date of obligations incurred through that date and payable for other professional fees, excluding legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Carrying value as of the balance sheet date of obligations incurred through that date and payable for operating and voyage expenses. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Amounts charged by port authorities for the use of infrastructure. The pre-delivery and pre-joining expenses incurred during the period. The tonnage taxes for the period. The cost of lubricants consumed during the period. The size of the vessel. The date of the vessel delivery to the Company. The year that the vessel was built. Amount of gain (loss) included in earnings for the period from the settlement of interest rate derivatives not designated as hedging instruments. The number of operating vessels acquired by the Company. Amount of debt prepaid. The amount of maintenance expenses for vessel scrubbers and BWTS incurred during the period. Number of tranches for issuance of restricted shares. The amount that indicates the Company's fleet performance. The number of equity-based payment instruments, excluding stock (or unit) options, that are expected to vest. Monthly lump fee payable to Interchart, as part of the Services Agreement for brokering and commercial services. Brokerage Commissions on contracted Charter Revenues. The aggregate consultancy fees related to executive officers of the Company. The monthly rent expense. The number of directors constituting the Board of Directors. Number of vessels acquired The gross daily charter rate. The percentage of coverage through foreign currency hedging. The scrap value of vessels per light weight ton (LWT). The estimated vessels' salvage value per lightweight ton. Purchase price payable at the end of the bareboat charter. Number of repayment installments of a credit facility agreement. The number of vessels financed by the debt instrument. Carrying value as of the balance sheet date of obligations incurred through that date and payable for loan interest and financing fees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). The vessel's capacity in deadweight tonnage. The difference between the book and the fair value of the debt instrument payable. Amount of acquired leases at above market lease rate with a finite life. A description of the revenue recognition method. The amount of expenses relate to long-term debt prepaymets. The number of equity-based payment instruments, excluding stock (or unit) options, that are subject to vest. A description of the operating lease expense recognition method. The amount that indicates the cumulative Bunker Saving. Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. The amount of cash outflow per vessel paid by the Company to the lessors as security for its obligations. Specific incremental costs directly attributable to a proposed or actual offering of securities. Amount of lessee's right to use underlying asset under operating lease obligations. Tabular disclosure for lessee's operating leases. Includes, but is not limited to, description of lessee's operating lease, existence and terms of renewal or purchase options and escalation clauses, restrictions imposed by lease, such as those concerning dividends, additional debt, and further leasing, rent holidays, rent concessions, or leasehold improvement incentives and unusual provisions or conditions. Date the credit facility terminates, in YYYY-MM format. Number of shares sold as part of secondary offering. The cumulative Bunker Saving, above which the Board of Directors will award to key employees. Percentage of annual Bunker Benefit, the value of which will be awarded as share-based payment arrangement. Amount of cash inflow before closing and debt issuance costs received by a seller-lessee in a sale-leaseback recognized in financing activities. Tabular disclosure of future minimum lease payments as of the date of the latest balance sheet presented, in aggregate and for each of the five years succeeding fiscal years, with separate deductions from the total for the amount representing executor costs, including any profit thereon, included in the minimum lease payments and for the amount of the imputed interest necessary to reduce the net minimum lease payments to present value. Future minimum rental payments in aggregate as of the balance sheet date under operating leases. Future rental payments receivable within one year of the balance sheet date under an operating lease. Future rental payments receivable within the second year from the balance sheet date under an operating lease. Future rental payments receivable within the third year from the balance sheet date under an operating lease. Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. Amount of contractual obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date. Amount of contractual obligation to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date. Amount of contractual obligation to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date. For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Non cash outflow in the form of dividends.Outstanding carrying value as of the balance sheet date of dividends declared but unpaid by the entity. The amount of cash dividends outstanding. Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. A description of the terms of the lease(s) related to the assets being leased-back in connection with the transaction involving the sale of property to another party and the lease of the property back to the seller. A description of the terms of the lease(s) related to the assets being leased-back in connection with the transaction involving the sale of property to another party and the lease of the property back to the seller. Amount after tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss) The amount representing the valuation of the interest rate swaps on the termination date, received by the company The amount representing the cumulative gain on the hedging instrument on the de-designation date. Increase/ (decrease) in gross trade account receivables. Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM format. Date which lease or group of leases is set to expire, in YYYY-MM format. Reversed amount of expense for award under share-based payment arrangement. Excludes amount capitalized. The gross daily charter-in rate. The gross daily charter out rate. The date when the facility was drawn down. The date when the facility was repaid. The average age of property, plant and equipment. The amount of commissions and share cancellation fees during the period. Carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the operating cycle if longer, excluding current portion. Date when an entity was incorporated Description of the scope of the credit facility arrangement. The date when the facility was prepaid. Discount amount used by lessee to determine present value of finance lease payments. Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current and non-current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, long-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Amount of decrease in deferred assets, classified as other. Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK). Hartree Marine Fuels LLC [Member] [Default Label] AOM [Member] [Default Label] Assets, Current Assets Liabilities, Current Liabilities Stockholders' Equity Attributable to Parent Liabilities and Equity Gain (Loss) on Termination of Lease Other Nonrecurring Gain Costs and Expenses Operating Income (Loss) Interest Expense Other Nonoperating Income (Expense) Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Income Tax Expense (Benefit) IncomeLossFromContinuingOperationsBeforeIncomeLossFromEquityMethodInvestments OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax1 Comprehensive Income (Loss), Net of Tax, Attributable to Parent DividendsCommonStock1 Stock Repurchased and Retired During Period, Shares Dividends, Common Stock Amortization of Below Market Lease Unrealized Gain (Loss) on Derivatives Other Noncash Income (Expense) GainFromInsuranceClaim Increase (Decrease) in Accounts Receivable Increase (Decrease) in Inventories Increase (Decrease) in Prepaid Expense and Other Assets Increase (Decrease) in Derivative Assets Increase (Decrease) in Due from Related Parties, Current Increase (Decrease) in Other Receivables Increase (Decrease) in Accounts Payable, Trade Increase (Decrease) in Accrued Liabilities Increase (Decrease) in Other Accounts Payable Net Cash Provided by (Used in) Operating Activities Payments to Acquire Property, Plant, and Equipment Payments to Acquire Marketable Securities Net Cash Provided by (Used in) Investing Activities Repayments of Debt Payments of Financing Costs Payments of Ordinary Dividends, Common Stock Payments of Stock Issuance Costs Payments for Repurchase of Common Stock Net Cash Provided by (Used in) Financing Activities Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Lessee, Operating Lease, Liability, to be Paid LesseeFinanceLeaseDiscountAmount Consultancy fees Property, Plant and Equipment, Gross Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Long-Term Debt, Maturity, Year One Long-Term Debt, Maturity, Year Two Long-Term Debt, Maturity, Year Three Long-Term Debt, Maturity, Year Four Long-Term Debt, Maturity, Year Five Long-Term Debt, Maturity, after Year Five DebtInstrumentCarryingAmount1 Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value ContractualObligation1 ContractualObligationDueInNextTwelveMonths1 OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears1 ContractualObligationDueInSecondYear1 GainLossOnDerivativeInstrumentsAggregateNetEffectInEarnings Voyage revenues [Default Label] DecreaseInDeferredAssetsIncludedInOtherCurrentAssets